Daniel curtis d wight whitcomb



(No Model.) l

D. C. D. WHITGOMB. PAGE WHEEL 0R GRANK DISK.

No. 435,576. Patented Sept. 2, 1890.

UNITED STATES PATENT OFFICE.

DANIEL CURTIS DVV'IGHT IVI'IITCOMB, OF IIOLDREGE, NEBRASKA, ASSIGNOR TO THE HOLDREGE MANUFACTURING COMPANY, OF SAME PLACE.

FACE-WHEEL OR CRANK-DISK.

SPECIFICATION forming part of' Letters Patent No. 435,576, dated September 2, 1890.

Application filed May 26, 1890. Serial No. 353,225. (No model.)

To all whom t may concern: of resilience in cast metal, and I make use of Beit known that I, DANIEL CURTIS DWIGHT this resilience in the inner flange in the fol- VVHITCOMB, a citizen of t-he United States, relowing manner: lVhen the Wrist-pin is to be siding at Holdrege, in the county of Phelps inserted, the inner flange is deected, by 55 5 and State of Nebraska, have invented a cercramping or otherwise, toward the outer tain new and useful Improvement in Faceflange, as indicated in dotted lines at theleft- Wheels or Crank-Disks, of which the followhand side of Fig. 2, and the wrist-pin is then ing is a full, clear, and exact description. inserted first through the tapered opening e The object of this invention is to provide in the outer flange and then screwed into the 6o a o a face-wheel or crank-disk to which the Wristboss in the inner flange. Then the wrist-pin pin may be readily attached without extrahas been screwed in as far as possible, the neous nuts and be held securely in place and cramps are removed, and the inner flange iinbe capable of' ready removal. niediately assumes, by virtue of its resilience,

rlhe invention consists in a face-wheel or its parallelism with the outer flange, and 65 i5 crank-disk having an inner and an outer thereby draws the tapered portion of the flange and a hub, the outer flange being wrist-pin into its tapered opening e, and so reamed out tapering and the inner flange bebinds the same and makes a very close and ing screw-tapped to receive a tapered and tight joint or fit.

threaded wrist-pin, substantially in the inan- In operation the tendency of the flanges to 7o zo ner hereinafter more particularly set forth separate incident to the revolving of the wheel and finally claimed. would tend, further, to draw the wrist-pin into In the accompanying drawings, illustrating its tapered socket e, and thereby continually my invention, in the several figures of which tighten the connection of the wrist-pin with like parts are similarly designated, Figure l the face-wheel- The inner flange takes the 75 z 5 is an elevation; Fig. 2, a plan; Fig. 3, a secplace of a nut, which latter offers no lateral tion taken in the plane of line 0c 0:, Fig. 1, resistance to the pin, while the inner flange, looking in the direction of the arrow; and being made solid on the hub with the outer Eig. 4, a plan of the wrist-pin detached. flange, resists all lateral pressure. Moreover,

My improved facewheel or crank-disk, as the use of the two flanges furnishes the long- 8o 3o shown, has an inner flange a and an outer est possible bearing for the Wrist-pin that can flange b and ahub c, common to both. In pracbe had. By providing the space between the tice the most economical and convenient inner and outer flanges still another advanmanner of constructing these parts will be tage is gained, in this, that the wrist-pin is by casting them as an integer, although I do prevented from wearing out its bearing. If S5 35 not limit the invention to that particular the wheel were made solid and a hole bored mode of producing the said face-wheel or clear through the same to receive the wristcrank-disk. I prefer to provide a series of pin and the wrist-pin secured by a nut, then bosses d, arranged eccentrically on the outer in use, by the inevitable loosening of the nut faces of both flanges. These bosses are arand by the strain of the pitnian, the wrist- 9o 4o ranged at different distances from the center pin would begin to work loose and would soon of the face-wheel, so as to provide for adjustwabble in. its seat and wear out or ream out ment of the wrist-pin, in order to obtain difthe said seat and cut itself and soon destroy ferent lengths of stroke. The bosses in the both Wrist-pin andwheel. This cannot occur outer flange are provided with tapered holes where the wheel is made with inner and outer 95 4 5 e, and the bosses in the inner flange are screwflanges and a nut is dispensed with, as is obtapped. These threads may be either right vious, and for the reasons already stated. or left hand, as desired. The facewvheel or crank-disk shown in the The wrist-pin f is provided with .a head g, drawings is one specially designed for use on a cylindrical shank. .71., a tapered portion. 1', the wheel-shaft of windmills, the wrist-pin 10o 5o and a cylindrical screwethreaded portion j. being designed to receive the pitinan, which As is well known, there isacertain amount is connected to the working-rod5 but, 0f

course, I do not limit my invention to a face- Wheel or crank-disk for this purpose or for any specialrpurpose, the invention being designed for face-wheels, crank-disks, or crankwheels for use generally.

What I claim is- 1. A face-wheel or crank-disk composed 0f an inner flange and an outer flange and a connecting-hub, with an annular space separating the two flanges, the outer flange being reamed out and the inner flange being screwtapped to receive and secure the wrist-pin, substantially as described. Y

2. Aface-wheel or crank disk or wheel composed of an outer flange and an inner flange and a hub, all made as an integer, the two flanges being separated by an annular space and the outer flange being reamed out and the inner flange being screwtapped to receive and secure the wrist-pin, substantially as described.

3. A face-'Wheel or crank disk or wheel composed of an inner flange and an outerange and a hub uniting the two, with an annular space between the said flanges, the outer flange being provided with a tapered opening and the inner flange with a screw-tapped opening, combined with a wrist-pin having a cylindrical shank, a tapered portion, and a screwthreaded portion, substantially as and for the purpose described.

4. Aface-wheel or crank disk or wheel coni- `posed of an inner and an outer flange and a hub uniting the two, with an annular space lbetween the two flanges, the inner flange be- DANIEL CURTIS DWIGHT WHITCOMB.

Witnesses:

C. W. LEACH, A. N. KING. 

